Water Quality Legend

Current Status

Grey means water quality information for the beach is too old (more than 7 days old) to be considered current, or that info is unavailable, or unreliable.

Historical Status

When swimming season is over or when a beach's water quality data has not been updated frequently enough (weekly) it goes into historical status. This means that rather than displaying current data it displays the beach's average water quality for that year.

Green means the beach passed water quality tests 95% of the time or more.

Yellow means the beach passed water quality tests 60-95% of the time.

Red means the beach failed water quality tests 40% of the time or more.

Special Status

We may manually set the status for a specific beach if we have concerns about the sampling protocol, if there is an emergency, if monitoring practices don't exist or have recently changed, or other reasons that render this site "special."

Green means the beach has historically excellent or pristine water quality, but there is no current data.

Red means the water at the site has water quality issues or there is an emergency.

Grey means there is no current water quality information, the beach is under construction, there has been an event that has rendered water quality information unreliable or unavailable.

See the beach description for more information regarding their special status.

Holly Hill Harbor Community Beach

This is the private community beach of Holly Hills community in Edgewater, MD. It is located near the head of Bearneck Creek, off of Holly Drive.

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WATER QUALITY

Met water quality standards less than 60% of the time

Historical Status

This status is based on the latest sample, taken on August 30th, 2018. West/Rhode Riverkeeper Inc updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at

Holly Hill Harbor Community Beach is sampled weekly from May 22nd to September 4th

SOURCE INFORMATION

The West & Rhode Riverkeeper citizen-scientist volunteers sample swimming locations every Wednesday from Memorial Day through Labor Day. Samples results are generally reported on Thursdays and Swim Guide is updated as soon as possible to reflect the latest results.

Samples are measured for Entroccoci bacteria, which serve as an indicator bacteria for pathogens in the water. Analysis is performed by Anne Arundel Community College using the membrane filtration method (see http://water.epa.gov/scitech/methods/cwa/bioindicators/upload/method_1600.pdf).

The Environmental Protection Agency has set a threshold of 104 colony forming units per 100 milliliters (cfu/100ml) as the single test limit for weekly testing.

Samples recording less than 104 cfu/100ml are therefore green, as having met water quality criteria.

Samples recording 104 cfu/100ml or greater are given a red, as having failed to meet water quality criteria and there is an increased risk of illness.

Anne Arundel County Department of Health also advises that after a rainfall, all Anne Arundel County beaches are under a no swimming/no direct water contact advisory for 48 hours due to predicted elevated bacteria levels from rainwater runoff and increased health risks.

WATER QUALITY GRAPH

CHART TYPE

Pie Bar

INTERVAL

TIME PERIOD

Holly Hill Harbor Community Beach

This status is based on the latest sample, taken on August 30th, 2018. West/Rhode Riverkeeper Inc updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at

For water quality icon legend, click:

CURRENT WEATHER

-4°C

Clear and sunny

This is the private community beach of Holly Hills community in Edgewater, MD. It is located near the head of Bearneck Creek, off of Holly Drive.

Holly Hill Harbor Community Beach is sampled weekly from May 22nd to September 4th

SOURCE INFORMATION

The West & Rhode Riverkeeper citizen-scientist volunteers sample swimming locations every Wednesday from Memorial Day through Labor Day. Samples results are generally reported on Thursdays and Swim Guide is updated as soon as possible to reflect the latest results.

Samples are measured for Entroccoci bacteria, which serve as an indicator bacteria for pathogens in the water. Analysis is performed by Anne Arundel Community College using the membrane filtration method (see http://water.epa.gov/scitech/methods/cwa/bioindicators/upload/method_1600.pdf).

The Environmental Protection Agency has set a threshold of 104 colony forming units per 100 milliliters (cfu/100ml) as the single test limit for weekly testing.

Samples recording less than 104 cfu/100ml are therefore green, as having met water quality criteria.

Samples recording 104 cfu/100ml or greater are given a red, as having failed to meet water quality criteria and there is an increased risk of illness.

Anne Arundel County Department of Health also advises that after a rainfall, all Anne Arundel County beaches are under a no swimming/no direct water contact advisory for 48 hours due to predicted elevated bacteria levels from rainwater runoff and increased health risks.

Swim Guide shares the best information we have at the moment you ask for it. Always obey signs at the beach or advisories from official government agencies. Stay alert and check for other swimming hazards such as dangerous currents and tides. Please report your pollution concerns so Affiliates can help keep other beach-goers safe.
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